Once you start the conference, anyone waiting on hold automatically joins the call. Anyone who calls after the conference has started automatically joins the call in progress.

Manage the Audio Conference (Chairperson and Participants)

Chairperson: You can control the access to your conference, as well as anyone who can listen or speak. To keep the conference well organized, perform the following commands at any time. Just use the touch-tone phone used to start the conference, or use the web-meeting Audio Controls panel if open on your computer. NOTE: Also, you can not make outbound calls during conferencing; so be sure to share your conference information with the participants.